Wire-forming machine



M. OLSON.

WIRE FORMING MACHINE.

APPLICATION FILED JUNE 17. 1920.

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WIRE FORMING MACHINE- APPLICATION FILED JUNE 17, 1920.

Patented J 11116 21, 1921.

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M. OLSON.

WIRE FORMING MACHINE.

APPLICATION FILED JUNE 17, 1920.

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WIRE FORMING MACHINE.

APPLICATION FILED JUNE 17, I920.

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Patented June 21, 1921.

UNITED STATES PATENT OFFICE."

' IAURITZ OLSON, OI BRIDGEPORT, CONNECTICUT, ASSIGNOR TO -THE A. H. NILSON MACHINE CO., 03 BRIDGEPORT, CONNECTICUT, CORPORATION OF CONNECTICUT. I

WIRE-FORMING MACHINE.

specification of Letters Patent. Patented June 21, 1921.

Application flied June 17, 1920. Serial No. 889,604.

To all whom it may concern."

Be it known that I, MAURITZ OLsoN, a citizen of the United States, and resident of Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain new and useful Im rovements in Wire- I Forming Machines, which the following is a specification.

This invention refers to automatic wire wfirking machines and has more articular reference to what is commercially own as a four-slide machine wherein the wire is automatically fed forward a predetermined distance, then cut off and bent into the desired form by a series of forming tools.

The object of-the invention is to provide a simple reliable and durable form of wire ripping, feeding and releasing mechanism or machines of this class, and wherein the gripping and releasing means is operated by separate means from that which actuates the feed slide; further to provide in connection with such a w11'e feeding mechanism separate hand operating device whereby the gripping and releasing means may be thrown in and out of operation independent of the slide operating mechanism.

The means for opening and closing the gripping jaws is supported entirely independent of the slide, and is provided with separately operating mechanism whereby it is slid up in arallel alinement with the ways for the slide, for closing the jaw in on and for holding the wire during the feeding mo vement and for similarly releasing the gripping jaws during'thereturn movement of the slide.

This class of machine is commonly emplayed for making various forms of articles from round wire, such forinstance as the wire parts for beer bottles, fruit jars, bucket-bails, draw-handles and like parts, that are required to be made exactly alike and in quantities. I

With these and other objects in view the invention resides and consists in' the construction and novel combination and arrangement of parts hereinafter more fully Fig. 3 is an enlarged vertical cross section taken on line 3 of Fig. 1. a Fig. 4 shows an enlarged plan view of a part of the bed, the feed slide and wire gripping mechanism shown in Fi 1. Y

Fig. 5 is a detached plan new of the feed slide and wire gripping mechanism, in a released position.

Fig. 6 shows a sectional elevation of a part of the wire gripping mechanism shown in Figs. 4-. and 5.

Fig. 7 shows anenlarged plan view of the cam and lever connections for operating the wire cutting mechanism, and

Fig. 8 is a sectional elevation of the same as seen from the lower end of Fig. 7

Referring in'detail to the characters of reference marked upon the drawings, 10 represents the bed of a four-slide wire forming machine and 11 legs supporting the same. 12 indicates the main drivin shaft journaled in bearings 1313 upon w ich is mounted the belt pulley 14 and fly wheel 15.

'A clutch 16 which is operated through a lever 17, a link 18 and handle 19 serve to engage and disengage the driving pulley 14 for the purpose of controlling the operation of the machine. A cam 20 carried upon the shaft serves to operate the forming slide 21 carrying one of the several forming tools. 22 represents a gear that is also mounted upon the main shaft, and meshes with a gear 23 to which one end of a connecting rod 34 is adjustably connected for the purpose of imparting to the same a reciprocatory movement, the other end of said rod being pivotedly connected to an arm 25, the lower end of which is hinged at 26 to the bracket 27 hung from the bed of the machine. One end of a link 28 is connected to the upper end of the arm 25 while the other end is pivotcats in ways of the block and is tween the cutting edge 0 the bed and carrying. a

' permit feediitijg same is shoved edly purpose connected to the feed slide 44 for the of sliding the same backward and orward on the ways 29 secured to the bed by means of screws 30.

Beveled gears 31 and 32 are also mounted u on the driving shaft 12, gear 31 meshing with a similar beveled ear 33 on a secon cam shaft 34 'ournaled 1n bearings 35 of the bed. U on t is shaft 34 is mounted a cam 36 whic actuates the slide 37 mounted in forming tool upon its forward end. a v

The wire cutting means is also operated from this shaft 34 and as will be seen includes a guide block 38 which is secured to the bed throu h the medium of a key 39 and bolt 40. A side 41 is mounted to reciprorovided steel cutter 42 which se by the screw bolt 43 m a ths of wire as bewith a hardened I cured to the slide way to shear off the len and the movable part 42. Both the block and slide are provided w th a hole whlch normally registers one with the other to when the slide s properly positioned. on the shaft 34 is mounted a cam 45 whic serves'to operate the arm 46 hung from the bracket 47 secured to the bed of the machine and bearlng a roll 48 for engaging the periphery of the cam. A link 49, one end of which is connected to the arm 46 and the other to the slide 41, serves to form-"an operative connection between the said arm and the cutting slide whereby the forward in its cutting move ment. I provide a cam actuated bell crank lever for the return of the cutting slide.

This lever is pivoted to the shaft 50 hung from the bed of the machine and includes two arms 51 and 52, the latter serving to engage the roll 48 of the arm 46 to hold it against the cam while the roll 53 on the other arm 51 rides upon the perlphery of the cam and imparts a rocker movement to" the bell crank lever which in effect forces the roll 48 and its arm together with the cutting slide out when the high point. in the cam passes under the roll. o

The bevel gear 32 upon the main driving shaft meshes with and drives a similar bevel car 54 upon the third cam shaft 55 3ournaled in beari s 56 of the bed. Upon the other end of t is cam shaft is also mounted a second bevel gear 57 that meshes with and operates a similar bevel gear 58 upon a fourth cam shaft 59 journaled in the bearings 60 secured to the bed. Upon this cam shaft 55 is mounted three cams, 61, 62

part a vertical movement to the stripper 66,

which is supported and guided in the bracket the fixed'block 38- I swung upon, its pivot.

to the fixed guideway 29 slidably mounted in the bracket which oper-' ates in conjunction with the forming tools of the several slides to strip the completed wire articles from the former.

A further cam 71is mounted on thecam shaft 59 and serves to operate-the slide 72 which is mounted in the bed inalinement with the before mentioned slide 21. The arm 73 secured to one of the bearings 60- carries the usual series of guide rolls 74 between -which the wire a is drawn and straightened duri the feeding The slide 44 WhlGh is operative y mounted upon the ways 29 attached to the bed, includes hole 75 that form ide passages o rations.

e ends of the slides for the wire, and is rovide with afixed jaw; 76 against whic the wire is gripped during the feeding operations. The gripping aw 77 carried by the slide is ivoted at 78 to the bracket 79, and is norma y held in the released position shown in Fig. 5 by the spring 80. An 0 crating arm 81 for the gripping member. is pivotally connected. to the slide at 82 and is rovided with a. bevel end 83 which operatively engages the rounded corner of the gripping member in a way to swing the same upon its pivotal point for the purpose of griipping and releasing the wire against the xed aw 76.- This arm is carried by the feed slide for the purtion having an upwardly disposed flange 85 against the opposite sides of whichthe 'rolls 86 secured to the arm 81 operate, and by,

means of which the arm is guided and The opposite end portions of this operating plate are linked y the links 87 and 88 so that any longitudinal movement imparted to the operating plate will cause the same to also move si lel with the guideway for the urpose of holding the parts of the slide or a 'ven length of time, in either anvopen' or c osed position A yoke 89 is attached to the 0 erating plate in a wa to surround the s aft ewise' and paral- 59 and in which t e plug 90 is slidably mounted. Rolls 91 are mounted on'thetwo legs of the oke to be engaged liythe rojection 92 t rough the slot 93 o the s aft so as to engage the rolls and throw the'operating plate backward and forward with the rotation of the shaft 59. Thusit will be seen that the gripping mechanism may be engaged or disengaged for operating the nasaeva feed-slide by simply pushing in or pullin out the plug; A ll crank ever is Pivot e at 87 to a racket 99 and has its long end 95 operatively connected to the cam 63 which operates the lever. The other end 96 of the lever carries an adjustin screw that enga es and operates the hol ing jaw 97 whic serves to engage and hold the wire against the fixed jaw 98 during the return movement of the slide.

From the foregoing it will be sum that owing to the link connection of the operating plate 84 with the fixed part the said plate will be moved parallel with and toward and from the guideway as the operating plate is thrown forward and backward e projection 92 on the cam shaft. B

nature of the work to be performed it wil I claim and desire to secure by Letters be seen that the gri ping jaw of the feed slide is opened at t e completion of each feeding o eration by reason of the operating plate 84 eing thrown back, as seen in Fig. 6, and thus moved away from the guide-way 29, upon which the feed-slide operates, and in spaced parallel relation thereto, so as to release the arm 81 and the gri ping jaw. The operating plate remains in t is position during the return open movement of the slide, whereupon it is again thrown forward by the projection 92, to gri the wire preparatory to the next forwar feedin movement of the slide, and is held in this orward I closed position throughout the entire forward stroke. The operating plate is moved.

twice with each rotation of the cam shaft and with each complete feeding movement of the feed-slide, being moved out-at the forward end of the stroke of the slide and in at' the end of the return stroke.

Having thus described my invention, vhat at cut, isa 1. The'combination with wire cutting and forming mechanism, of a wire feeding device including a reciprocatory slide, a wire gripping jaw pivoted thereon, a swinging arm also carried by the slide for operating the gripping jaw, anoperating member supported independent of the slide and connected with the arm for operating the same, and means for moving the operating member bodily to and from the slide and in parallel alinement with the movement thereof.

2. The combination with wire cutting and forming mechanism, of a wire feeding device including a reciprocatory slide, a wire gripping jaw pivoted thereon, a swinging arm also carried by the slide for operating the gripping jaw, an operating member hingedly supported upon the bed and slidably connected with the arm on the slide, and means for connecting and disconnecting the operating member to operate or release the swinging arm of the slide to control the wire feeding.

8. The combination with wire cutting and form ng mgchanism's, of a wire feeding device including a reciprocatory slide, a wire gripp ng aw andjope'ratmg arm carried by the shde, 3m operating plate for actuating the arm, means forsettmg the plate in a relative far and nearposition to the slide with each reciprocation of. the same, and separate means for moving the plate to operate the arm.

4. The combination with wire cutting and forming machines, 'of'a wire feeding slide, a wire rip ing mean'sfthereon, an 0 rating p1ate s ida 1y mounted on the be of the machine for'actuating the gripping means, a shaft for reciprocating the operating plate and means for operatively connecting and disconnecting the shaft and plate.

5. The combination with wire cutting and forming mechanisms, of a wire feeding slide, a wire grip mg means thereon, a swin OfJGIatIIIgI J ate supported upon the bed and s idably connected with the gripping means for opening and closing the same, and a shaft connection for reciprocating the operatir filplate.

6. e combination with wire cutting and forming mechanism, of a wire feeding slide an operating plate having a longitudina guideway thereon, means for moving the operatin plate toward and from the slide and longitudinally thereof, a wire gripping means carried by the slide and having an operating arm in slidable enga ement with the guideway of the operating plate.

7. The combination with wire cutting and formlng mechanism, of a wire feeding slide,

an operating shaft bearing a projection, a

slidably mounted 0 erating plate connected to be reclprocated y the projection on the shaft, said operatlng plate including a longitudinal guiding portion, means for im- ,by the slide, and slidably engaging the operating plate.

8. In a wire feeding device, the combination with a feed-slide and means for reciprocating the same, of an operating plate having engagin rolls, an operating arm carried by the s ide, and in slidable engagement with the operating plate, means for operating the plate and gripping means while the slide is at either end of its stroke including a cam shaft, a movable plug. in the cam shaft having an operating pro ection to engage or disengage the rolls of t e operatin plate to make the operation of the slide e ective or not as desired. 9. In a wire feeding device, the combination with a feed-slide and means for reciprocating the same, of an o erating plate slidably connected to a fixe part, an operating arm carried by the slide and engaged I by the ogerating plate, a; cam shaft for op Fairfield a nd State of Connecticut, this 15th efiagltngt e plate, a movable plugin the cam day of June, A. D., 1920. s a carr mg an o eratmg means to em I t ga e or d i sengage te operatmg plate to MAURITZ L 5 ma e the operation of the slide effective or Witnesses:

not as desired. y C, M. NEWMAN,

Signed at,Bridg'eport, in the county of LILLIAN M. Ammo. 

